Quartermaster MCP server

Quartermaster

This project started because I wanted to prototype a dam.

Nothing serious — a short demo, maybe more if it worked out. Before building anything, I wanted to see what I already owned that could speed it up. So I searched my library for "dam": nothing came back. Of course nothing came back — no asset is called a dam. But spread across four packages I already owned were curved concrete meshes, a water system, some rocky terrain. Everything the dam needed. I'd had most of it for years and never once connected the pieces.

That's what ~1,500 assets across two stores did to me when this started — a library that has since grown past 7,500 assets across five ecosystems. Almost all of it from bundles and sales, none of it remembered. And it's not just me — no AI assistant knows either. Ask one for help and it either builds everything from scratch or sends you shopping, while hundreds of dollars of exactly-the-right-thing sits on your disk.

Quartermaster indexes everything you own across the Unity Asset Store, Fab, Quixel Megascans, Gumroad and Leartes Cosmos — locally, on your machine — and serves it to your coding agent over MCP. It's the tool I wished existed that day: ask about a dam, get told you already own curved concrete meshes.

you    →  "I want to build a dam — what do I have to work with?"

agent  →  search_owned_assets(...)        finds the concrete meshes, water FX, terrain
          └─ Nordic Coastal Cliff (Quixel) · 5785 px/m · 2.03 × 2.92 × 2.44 m
             maps: Basecolor, Normal, Displacement, Cavity, AO, Roughness…
          validate_stack([...])           checks none of them fight each other
          import_asset_to_project(...)    unpacks into Assets/, demos stripped

Every result is something you own or can claim free — nothing is invented.

Typing a description, not a name — none of those results share a word with the query.

Why Quartermaster? A quartermaster's job was never remembering what's in stores — it's making sure you're equipped when it's time to move. That's nearer the real problem than forgetting is. I hadn't lost anything; I knew I owned stuff. What I couldn't do was get from "I want to prototype a dam" to "open these four packages" without an hour of digging first — and maybe more if it worked out doesn't survive an hour of digging. Ideas that arrive that way don't get rejected. They just quietly don't happen, and you never find out whether they would have.

What it indexes

Shortened. The full README is on GitHub.